Novel coronavirus's sealed transfer case
Technical Field
The invention relates to the technical field of virus transfer boxes, in particular to a novel coronavirus sealing transfer box.
Background
The virus is a non-cell life form and is composed of a nucleic acid long chain and a protein shell, the virus has no own metabolic mechanism and no enzyme system, so the virus leaves a host cell and becomes a chemical substance which has no life activity and can not independently propagate, and when the discovered novel coronavirus is transferred, the virus needs to be transferred to a transfer box; but the transfer case on the existing market is because lack corresponding buffering protection machanism, when the transfer case receives the collision or drops, the test tube that the transfer incasement portion held the virus takes place fragmentation easily, and then causes the virus to leak, causes serious threat to human health.
Disclosure of Invention
The invention provides a novel coronavirus sealing transfer box, which can effectively solve the problem that a test tube containing viruses in the transfer box is easy to crack when the transfer box is collided or falls due to the lack of a corresponding buffer protection mechanism, so that the viruses are leaked out, and the serious threat to the human health is caused.
In order to achieve the purpose, the invention provides the following technical scheme: a sealed transfer box for novel coronavirus comprises an incubator, wherein a sealed cover plate is hinged to the edge part of the top end of the incubator, the middle part of the top end of the sealed cover plate is rotatably connected with a rotating pull handle, and the bottom end of the inner side of the incubator is fixedly connected with a buffering protection mechanism;
the buffer protection mechanism comprises a rubber base plate, a buffer chute, a buffer slide block, a buffer spring, a buffer box, a protection rubber ring, a small liquid guide hole, a rectangular snap ring and an isolation bag;
the bottom end of the inner side of the heat preservation box is fixedly connected with a bottom end fixedly connected with a rubber cushion plate, four side surfaces in the heat preservation box are uniformly provided with buffer chutes, the middle part of the inner side of each buffer chute is connected with a buffer slide block in a sliding manner, the middle part of one side of each buffer slide block is fixedly connected with a buffer spring, one end of each buffer spring corresponds to the top end of the rubber cushion plate and is fixedly connected with a buffer box, the edge part of the top end of each buffer box is fixedly connected with a protective rubber ring, and the side surface of each buffer box;
the buffer box top is fixed the joint and is had the rectangle snap ring, the isolation bag has been placed to clearance department between buffer box and the rectangle snap ring.
Preferably, the bottom of the buffer box is tightly attached to the top of the rubber base plate, the rubber base plate is in sliding connection with the buffer box, the outer side of the protective rubber ring is fixedly connected with the inner wall of the heat insulation box, and the joint of the bottom of the liquid guide small hole and the protective rubber ring and the buffer box is tangent.
Preferably, a test tube box is placed on the inner side of the isolation bag, four outer side surfaces of the test tube box are uniformly and fixedly connected with positioning rubber blocks, and the bottom of the inner side of the test tube box is fixedly connected with a test tube fixing mechanism;
the test tube fixing mechanism comprises a bottom placing block, a placing circular groove, a lower positioning clamping plate, a rectangular sliding groove, a fixing clamping plate, a mounting thin circular hole, an extension spring, a sliding clamping plate, a semicircular clamping groove, a silica gel protective sheet and a clamping rotating block;
the bottom of the inner side of the test tube box is evenly provided with a bottom placing block, the top end of the bottom placing block is evenly provided with a placing circular groove, the inner side of the test tube box is fixedly connected with a lower positioning clamp plate corresponding to the top of the bottom placing block, rectangular sliding grooves are arranged on the two sides of the inner part of the test tube box corresponding to the top of the lower positioning clamp plate, a fixed clamping plate is fixedly connected with one end of the inner side of the rectangular sliding chute, a thin round mounting hole is arranged in the middle of the other end of the inner side of the rectangular sliding chute, an extension spring is fixedly connected with one side inside the mounting thin round hole, one end of the extension spring is fixedly connected with a sliding clamping plate, the edge parts of the top ends of the fixed clamping plate and the sliding clamping plate are uniformly provided with semicircular clamping grooves, the inner sides of the semicircular clamping grooves are bonded with silica gel protective sheets, and the positions of the two sides in the test tube box, which correspond to the top between the two bottom placing blocks, are rotatably connected with clamping rotating blocks.
Preferably, the bottom placing block, the lower positioning clamp plate and the fixing clamp plate are located on the same straight line, the diameters of the placing circular grooves and the semicircular clamping grooves are the same, and the length of the clamping rotating block is the same as the width of a gap between the two adjacent bottom placing blocks.
Preferably, the bottom end of the test tube box is movably connected with an emergency sterilization mechanism;
the emergency sterilization mechanism comprises a rectangular sealing plate, a battery mounting groove, a storage battery, a sealing square plate, a mounting lamp holder, an ultraviolet sterilization lamp tube, a special-shaped through hole, a sealing circular plate, a sealing silica gel block and an observation port;
the bottom end of the test tube box is movably connected with a rectangular sealing plate, a battery mounting groove is formed in one side of the top end of the rectangular sealing plate, a storage battery is movably connected to the inner side of the battery mounting groove, a sealing square plate is movably connected to the top of the battery mounting groove, mounting lamp holders are symmetrically arranged on two sides of the bottom of the rectangular sealing plate, an ultraviolet sterilization lamp tube is movably connected to one side of each mounting lamp holder, and the input end of each ultraviolet sterilization lamp tube is electrically connected with the output end of;
the special-shaped through hole is formed in the position, corresponding to one side of the battery mounting groove, of the top end of the rectangular sealing plate, the top of the special-shaped through hole is connected with a sealing circular plate through threads, a sealing silica gel block is fixedly connected to the middle of the bottom end of the sealing circular plate, and an observation port is formed in the position, corresponding to one side of the special-shaped through hole, of the top end of the rectangular sealing plate.
Preferably, the sealing silica gel block is tightly attached to the inner wall of the special-shaped through hole, and the observation port is sealed through the transparent glass block.
Preferably, the middle parts of two sides of the heat preservation box are respectively provided with a cooling heat preservation mechanism;
the cooling and heat-preserving mechanism comprises a placing conical groove, a fixed sliding groove, a mounting circular plate, a connecting threaded ring, an ice bag placing box, a fixed lug, a long circular groove and a silica gel strip;
insulation can both sides middle part has all been seted up and has been placed the bell jar, place bell jar one end and evenly seted up fixed spout, place bell jar one end swing joint has the installation plectane, installation plectane one side edge portion fixedly connected with connecting thread ring, there is the ice bag through threaded connection in the connecting thread ring outside and places the box, the ice bag is placed the even fixedly connected with fixed lug of box outside circumferencial direction, the ice bag is placed box one end and is evenly seted up long circular slot, long circular slot inboard bonds and has the silica gel strip.
Preferably, the fixed lug is matched with the fixed sliding groove, and the shape of the ice bag placing box is the same as that of the conical groove.
Preferably, the four corners of the top end of the sealing cover plate are fixedly connected with upper corner plates, the top end of each upper corner plate is fixedly connected with a positioning circular groove, the four corners of the bottom end of the heat preservation box are fixedly connected with lower corner plates, the middle of the bottom end of each lower corner plate is fixedly connected with a limiting cylinder, and the bottom of the inner side of each positioning circular groove and the bottom of each limiting cylinder are fixedly connected with magnetic sheets.
Preferably, the central points of the positioning circular groove and the limiting cylinder are located on the same straight line, and the positioning circular groove and the limiting cylinder are the same in size.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use:
1. the buffering protection mechanism is arranged, buffering is provided for the test tube box inside the buffer box through the rubber base plate, the buffering sliding groove, the buffering sliding block and the buffering spring, energy transmitted to the test tube box after the heat preservation box is impacted is weakened, the test tube box is effectively prevented from breaking and virus leakage is caused, the threat of virus leakage to human is avoided, and the use safety of the transfer box is improved.
2. Seal through the clearance of protection rubber ring between to insulation can and the buffer tank, washing liquid and buffer spring contact when avoiding wasing the transfer case, thereby cause buffer spring's corruption, through leading the washing liquid guide buffer tank between liquid aperture with protection rubber ring and the buffer tank, effectually prevented liquid gathering on protection rubber ring, keep apart test tube box and buffer tank inside through rectangle snap ring and isolation bag, through the washing work volume that direct change isolation bag can effectual reduction transfer case.
3. The test tube fixing mechanism is arranged, the bottom is used for placing the test tube, the round groove and the lower positioning clamp plate are used for preliminarily positioning the test tube, the test tube can be quickly placed in the test tube box, the test tube box is quickly clamped and fixed through the rectangular sliding groove, the fixing clamp plate, the extension spring, the sliding clamp plate and the clamping rotating block, the work efficiency is effectively improved, the test tube is protected outside the test tube through the silica gel protection sheet, the test tube is prevented from being broken due to too large clamping force, and the clamping process of the test tube is optimized.
4. The emergency sterilization mechanism is arranged, the state of the test tube can be observed under the condition that the test tube box is not opened through the observation port, after the test tube is abnormally broken in the test tube box in the discovery, the test tube box is physically sterilized through the storage battery and the ultraviolet sterilization lamp tube, through the special-shaped through hole, the sealing circular plate and the sealing silica gel block start a period of time after physical sterilization, chemical sterilization medicament is injected into the test tube box, and then after the virus leaks, the test tube box is not required to be opened, sterilization can be carried out, the scope of virus diffusion is greatly reduced, the influence of virus leakage is reduced, and the function of the transfer box is expanded.
5. Set up cooling heat preservation mechanism, place the box through connecting thread ring and ice bag and place the box, place the quick installation of box and place the bell jar in with the ice bag through fixed spout, installation plectane, fixed lug, long circular slot and silica gel strip, simplified the change step of ice bag, improved the change efficiency of ice bag, reduced the number of times that the insulation can was opened, fallen the risk that the transfer incasement portion virus leaked.
6. Pile up the transfer case through location circular slot, spacing cylinder and magnetic sheet, effectually prevented to appear sliding between two transfer cases, lead to the upper transfer case to drop, improved the stability that the transfer case piled up, protect the edge of special case through last scute and lower scute simultaneously, improved the structural strength of transfer case.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a schematic view of the internal structure of the incubator of the present invention;
FIG. 4 is a schematic structural view of the cushioning protection mechanism of the present invention;
FIG. 5 is a schematic view of the test tube holding mechanism of the present invention;
FIG. 6 is a schematic structural diagram of an emergency sterilization mechanism of the present invention;
FIG. 7 is a schematic structural view of a cooling and heat-preserving mechanism of the present invention;
reference numbers in the figures: 1. a heat preservation box; 2. sealing the cover plate; 3. rotating the pull handle;
4. a buffer protection mechanism; 401. a rubber pad; 402. a buffer chute; 403. a buffer slide block; 404. a buffer spring; 405. a buffer tank; 406. a protective rubber ring; 407. a liquid guiding small hole; 408. a rectangular snap ring; 409. an isolation bag;
5. a test tube box; 6. positioning a rubber block;
7. a test tube fixing mechanism; 701. a bottom placement block; 702. placing a circular groove; 703. a lower positioning splint; 704. a rectangular chute; 705. fixing the clamping plate; 706. installing a thin circular hole; 707. an extension spring; 708. a sliding clamp plate; 709. a semicircular clamping groove; 710. a silica gel protective sheet; 711. clamping the rotating block;
8. an emergency sterilization mechanism; 801. a rectangular sealing plate; 802. a battery mounting groove; 803. a storage battery; 804. sealing the square plate; 805. installing a lamp holder; 806. ultraviolet sterilization lamp tube; 807. a special-shaped through hole; 808. sealing the circular plate; 809. sealing the silica gel block; 810. a viewing port;
9. a cooling and heat-preserving mechanism; 901. placing a conical groove; 902. fixing the chute; 903. mounting a circular plate; 904. connecting a threaded ring; 905. an ice bag placing box; 906. fixing the bump; 907. a long circular groove; 908. a silica gel strip;
10. an upper corner plate; 11. positioning the circular groove; 12. a lower corner plate; 13. a limiting cylinder; 14. a magnetic sheet.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1-7, the invention provides a technical solution, a novel coronavirus sealing transfer box, which comprises an incubator 1, a sealing cover plate 2 hinged to the edge of the top end of the incubator 1, a rotary pull handle 3 rotatably connected to the middle of the top end of the sealing cover plate 2, and a buffer protection mechanism 4 fixedly connected to the bottom end of the inner side of the incubator 1;
the buffer protection mechanism 4 comprises a rubber backing plate 401, a buffer chute 402, a buffer slide block 403, a buffer spring 404, a buffer box 405, a protection rubber ring 406, a small liquid guide hole 407, a rectangular snap ring 408 and an isolation bag 409;
the bottom end of the inner side of the heat preservation box 1 is fixedly connected with a rubber cushion plate 401, four side surfaces in the heat preservation box 1 are uniformly provided with buffer sliding grooves 402, the middle part of the inner side of each buffer sliding groove 402 is slidably connected with a buffer slide block 403, the middle part of one side of each buffer slide block 403 is fixedly connected with a buffer spring 404, one end of each buffer spring 404 is fixedly connected with a buffer box 405 corresponding to the top end of the rubber cushion plate 401, the edge part of the top end of each buffer box 405 is fixedly connected with a protective rubber ring 406, the side surface of each buffer box 405 is uniformly provided with liquid guide small holes 407 corresponding to the top parts of the protective rubber rings 406, the rubber cushion plate 401, the buffer sliding grooves 402, the buffer slide blocks 403 and the buffer springs 404 are used for buffering the test tube boxes 5 in the buffer boxes 405, energy transmitted to the test tube boxes 5 after the heat preservation, the use safety of the transfer box is improved;
the top of the buffer tank 405 is fixedly clamped with a rectangular snap ring 408, and an isolation bag 409 is arranged at the gap between the buffer tank 405 and the rectangular snap ring 408.
Buffer tank 405 bottom and the inseparable laminating in rubber cushion 401 top, be sliding connection between rubber cushion 401 and the buffer tank 405, protective rubber ring 406 outside and insulation can 1 inner wall fixed connection, drain aperture 407 bottom and protective rubber ring 406 and buffer tank 405 junction are to cutting, seal up the clearance between insulation can 1 and the buffer tank 405 through protective rubber ring 406, washing liquid and buffer spring 404 contact when avoiding wasing the transfer box, thereby cause buffer spring 404's corruption, guide buffer tank 405 through drain aperture 407 with the washing liquid between protective rubber ring 406 and the buffer tank 405, the effectual gathering of liquid on protective rubber ring 406 that has prevented, keep apart test-tube case 5 and the inside of buffer tank 405 through rectangle snap ring 408 and barrier bag 409, can effectual reduction transfer tank's washing work load through direct change barrier bag 409.
A test tube box 5 is placed on the inner side of the isolation bag 409, four outer side surfaces of the test tube box 5 are uniformly and fixedly connected with positioning rubber blocks 6, and the bottom of the inner side of the test tube box 5 is fixedly connected with a test tube fixing mechanism 7;
the test tube fixing mechanism 7 comprises a bottom placing block 701, a placing circular groove 702, a lower positioning clamping plate 703, a rectangular sliding groove 704, a fixing clamping plate 705, a mounting thin circular hole 706, an extension spring 707, a sliding clamping plate 708, a semicircular clamping groove 709, a silica gel protective sheet 710 and a clamping rotating block 711;
the bottom of the inner side of the test tube box 5 is uniformly provided with a bottom placing block 701, the top end of the bottom placing block 701 is uniformly provided with a placing circular groove 702, the inner side of the test tube box 5 corresponding to the top of the bottom placing block 701 is fixedly connected with a lower positioning clamp plate 703, two sides of the inner side of the test tube box 5 corresponding to the top of the lower positioning clamp plate 703 are provided with a rectangular slide groove 704, one end of the inner side of the rectangular slide groove 704 is fixedly connected with a fixed clamp plate 705, the other end of the inner side of the rectangular slide groove 704 is fixedly connected with a mounting thin circular hole 706, one side of the inner side of the mounting thin circular hole 706 is fixedly connected with a tension spring 707, one end of the tension spring 707 is fixedly connected with a slide clamp plate 708, the edges of the top ends of the fixed clamp plate 705 and the slide clamp plate 708 are uniformly, the bottom placing block 701, the lower positioning clamp plate 703 and the fixed clamp plate 705 are positioned on the same straight line, the diameters of the placing circular groove 702 and the semicircular clamping groove 709 are the same, the length of the clamping rotating block 711 is the same as the width of a gap between two adjacent bottom placing blocks 701, the placing circular groove 702 and the lower positioning clamp plate 703 are used for preliminarily positioning the test tube, so that the test tube can be rapidly placed in the test tube box 5, the test tube is rapidly clamped and fixed through the rectangular sliding groove 704, the fixed clamp plate 705, the extension spring 707, the sliding clamp plate 708 and the clamping rotating block 711, the working efficiency is effectively improved, the outer side of the test tube is protected through the silica gel protective sheet 710, the test tube breakage caused by excessive clamping force is avoided, and the clamping process of the test tube is optimized;
the bottom end of the test tube box 5 is movably connected with an emergency sterilization mechanism 8;
the emergency sterilization mechanism 8 comprises a rectangular sealing plate 801, a battery mounting groove 802, a storage battery 803, a sealing square plate 804, a mounting lamp holder 805, an ultraviolet sterilization lamp tube 806, a special-shaped through hole 807, a sealing circular plate 808, a sealing silica gel block 809 and an observation port 810;
the bottom end of the test tube box 5 is movably connected with a rectangular sealing plate 801, one side of the top end of the rectangular sealing plate 801 is provided with a battery mounting groove 802, the inner side of the battery mounting groove 802 is movably connected with a storage battery 803, the top of the battery mounting groove 802 is movably connected with a sealing square plate 804, two sides of the bottom of the rectangular sealing plate 801 are symmetrically provided with mounting lamp holders 805, one side of the mounting lamp holders 805 is movably connected with an ultraviolet sterilization lamp tube 806, and the input end of the ultraviolet sterilization lamp tube 806 is electrically;
the top end of the rectangular sealing plate 801 is provided with a special-shaped through hole 807 at a position corresponding to one side of the battery mounting groove 802, the top of the special-shaped through hole 807 is connected with a sealing circular plate 808 through a thread, the middle part of the bottom end of the sealing circular plate 808 is fixedly connected with a sealing silica gel block 809, the top end of the rectangular sealing plate 801 is provided with an observation port 810 at a position corresponding to one side of the special-shaped through hole 807, the sealing silica gel block 809 is tightly attached to the inner wall of the special-shaped through hole 807, the observation port 810 is sealed by a transparent glass block, the state of a test tube can be observed through the observation port 810 without opening the test tube box 5, after the test tube in the test tube box 5 is found to be abnormally cracked, the test tube 5 is physically sterilized through the storage battery 803 and the ultraviolet sterilization lamp tube 806, after the physical sterilization starts for a period of time through the, the test tube box 5 is not required to be opened for sterilization, the virus diffusion range is greatly reduced, the virus leakage influence is reduced, and the function of the transfer box is expanded;
the middle parts of both sides of the heat preservation box 1 are provided with cooling heat preservation mechanisms 9;
the cooling and heat-insulating mechanism 9 comprises a placing conical groove 901, a fixed sliding groove 902, a mounting circular plate 903, a connecting threaded ring 904, an ice bag placing box 905, a fixed lug 906, a long circular groove 907 and a silica gel strip 908;
the middle parts of two sides of the insulation can 1 are respectively provided with a placing conical groove 901, one end of the placing conical groove 901 is uniformly provided with a fixed sliding chute 902, one end of the placing conical groove 901 is movably connected with an installing circular plate 903, one side edge part of the installing circular plate 903 is fixedly connected with a connecting threaded ring 904, the outer side of the connecting threaded ring 904 is connected with an ice bag placing box 905 through threads, the outer side of the ice bag placing box 905 is uniformly and fixedly connected with a fixed lug 906 in the circumferential direction, one end of the ice bag placing box 905 is uniformly provided with a long circular groove 907, the inner side of the long circular groove 907 is bonded with a silica gel strip 908, the fixed lug 906 is matched with the fixed sliding chute 902, the shape of the ice bag placing box 905 is the same as the shape of the placing conical groove 901, the ice bag is placed through the connecting threaded ring 904 and the ice bag placing box 905, and the ice bag placing box 905 is rapidly installed in the placing, the replacement steps of the ice bags are simplified, the replacement efficiency of the ice bags is improved, the opening times of the heat insulation box 1 are reduced, and the risk of virus leakage in the transfer box is reduced;
scute 10 on the equal fixedly connected with in 2 top four corners positions departments of sealed cover plate, scute 12 under the equal fixedly connected with in 10 top fixedly connected with location circular slot 11 of upper corner, 1 bottom four corners department of insulation can, lower 12 bottom middle part fixedly connected with spacing cylinder 13, location circular slot 11 inboard bottom is good with the equal fixedly connected with magnetic sheet 14 in spacing cylinder 13 bottom, location circular slot 11 and the central point of spacing cylinder 13 are located same straight line, location circular slot 11 is the same with spacing cylinder 13's size, through location circular slot 11, spacing cylinder 13 and magnetic sheet 14 pile up shifting the case, effectually prevent to appear sliding between two transfer cases, lead to the upper strata to shift the case and drop, the stability that the transfer case piled up has been improved, protect the edge of special case through last scute 10 and lower scute 12 simultaneously, the structural strength of transfer case has been improved.
The working principle and the using process of the invention are as follows: in the practical application process, in the process of placing a test tube into a test tube box 5, the test tube is firstly inserted into a placing circular groove 702, the test tube is preliminarily positioned through a bottom placing block 701, the placing circular groove 702 and a lower positioning clamp plate 703, so that the test tube can be quickly placed into the test tube box 5, after the test tube is completely placed into the test tube box 5, a clamping rotating block 711 is rotated, after the clamping rotating block 711 is contacted with a sliding clamp plate 708, the sliding clamp plate 708 pushes the sliding clamp plate 708 to approach to a fixed clamp plate 705 along a rectangular sliding groove 704, so that the test tube is quickly clamped and fixed, the working efficiency is effectively improved, the outer side of the test tube is protected through a silica gel protective sheet 710, the test tube breakage caused by overlarge clamping force is avoided, and the clamping process of the test tube is optimized;
after the insulation box 1 is impacted, vibration on the insulation box 1 is transmitted to the buffer spring 404, so that the buffer spring 404 is compressed, meanwhile, the buffer sliding block 403 slightly slides along the buffer sliding groove 402, the vibration transmitted upwards from the bottom of the insulation box 1 is effectively isolated through the rubber base plate 401, further, the buffer is provided for the test tube box 5 in the buffer box 405, the energy transmitted to the test tube box 5 after the insulation box 1 is impacted is weakened, the virus leakage caused by the breakage of the test tube box 5 is effectively prevented, the threat of the virus leakage to human is avoided, and the use safety of the transfer box is improved;
the clearance between the heat insulation box 1 and the buffer box 405 is sealed through the protective rubber ring 406, so that the contact between cleaning liquid and the buffer spring 404 when the transfer box is cleaned is avoided, the buffer spring 404 is corroded, the cleaning liquid between the protective rubber ring 406 and the buffer box 405 is guided to the buffer box 405 through the liquid guide small hole 407, the liquid is effectively prevented from being gathered on the protective rubber ring 406, the test tube box 5 and the interior of the buffer box 405 are isolated through the rectangular clamping ring 408 and the isolation bag 409, and the cleaning workload of the transfer box can be effectively reduced by directly replacing the isolation bag 409;
the state of the test tube can be observed through the observation port 810 under the condition that the test tube box 5 is not opened, after the test tube in the test tube box 5 is found to be abnormally broken, the test tube box 5 is physically sterilized through the storage battery 803 and the ultraviolet sterilization lamp 806, after the physical sterilization is started for a period of time, the sealing circular plate 808 and the sealing silica gel block 809 are screwed out from the special-shaped through hole 807, a chemical sterilization agent is injected into the test tube box 5 through the special-shaped through hole 807, and then after the virus leaks, the test tube box 5 can be sterilized without being opened, so that the virus diffusion range is greatly reduced, the virus leakage influence is reduced, and the function of the transfer box is expanded;
pile up the transfer case through location circular slot 11, spacing cylinder 13 and magnetic sheet 14, effectually prevented to appear sliding between two transfer cases, lead to the upper transfer case to drop, improved the stability that the transfer case piled up, protect the edge of special case through scute 10 and lower scute 12 simultaneously, improved the structural strength who shifts the case.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.